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274 lines
8.8 KiB
C++
274 lines
8.8 KiB
C++
#include "StdInc.h"
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#include "Fuzzy.h"
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#include <limits>
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//#include "../../lib/CObjectHandler.h"
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/*
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* Fuzzy.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#define MIN_AI_STRENGHT (0.5f) //lower when combat AI gets smarter
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struct BankConfig;
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class FuzzyEngine;
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class InputLVar;
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class CGTownInstance;
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using namespace boost::assign;
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using namespace vstd;
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FuzzyHelper *fh;
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struct armyStructure
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{
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float walkers, shooters, flyers;
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ui32 maxSpeed;
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};
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ui64 evaluateBankConfig (BankConfig * bc)
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{
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ui64 danger = 0;
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BOOST_FOREACH (auto opt, bc->guards)
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{
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danger += VLC->creh->creatures[opt.first]->fightValue * opt.second;
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}
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return danger;
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}
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armyStructure evaluateArmyStructure (const CArmedInstance * army)
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{
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ui64 totalStrenght = army->getArmyStrength();
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double walkersStrenght = 0;
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double flyersStrenght = 0;
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double shootersStrenght = 0;
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ui32 maxSpeed = 0;
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BOOST_FOREACH(auto s, army->Slots())
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{
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bool walker = true;
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if (s.second->type->hasBonusOfType(Bonus::SHOOTER))
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{
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shootersStrenght += s.second->getPower();
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walker = false;
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}
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if (s.second->type->hasBonusOfType(Bonus::FLYING))
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{
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flyersStrenght += s.second->getPower();
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walker = false;
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}
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if (walker)
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walkersStrenght += s.second->getPower();
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amax (maxSpeed, s.second->type->speed);
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}
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armyStructure as;
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as.walkers = walkersStrenght / totalStrenght;
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as.shooters = shootersStrenght / totalStrenght;
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as.flyers = flyersStrenght / totalStrenght;
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as.maxSpeed = maxSpeed;
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return as;
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}
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FuzzyHelper::FuzzyHelper()
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{
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initBank();
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initTacticalAdvantage();
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}
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void FuzzyHelper::initBank()
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{
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try
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{
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//Trivial bank estimation
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bankInput = new fl::InputLVar("BankInput");
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bankDanger = new fl::OutputLVar("BankDanger");
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bankInput->addTerm(new fl::SingletonTerm ("SET"));
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engine.addRuleBlock (&bankBlock); //have to be added before the rules are parsed
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engine.addInputLVar (bankInput);
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engine.addOutputLVar (bankDanger);
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for (int i = 0; i < 4; ++i)
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{
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bankDanger->addTerm(new fl::TriangularTerm ("Bank" + boost::lexical_cast<std::string>(i), 0, 1));
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bankBlock.addRule(new fl::MamdaniRule("if BankInput is SET then BankDanger is Bank" + boost::lexical_cast<std::string>(i), engine));
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}
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}
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catch (fl::FuzzyException fe)
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{
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tlog1 << "initBank " << fe.name() << ": " << fe.message() << '\n';
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}
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}
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void FuzzyHelper::initTacticalAdvantage()
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{
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try
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{
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//Tactical advantage calculation
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std::vector<fl::InputLVar*> helper;
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ourShooters = new fl::InputLVar("OurShooters");
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ourWalkers = new fl::InputLVar("OurWalkers");
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ourFlyers = new fl::InputLVar("OurFlyers");
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enemyShooters = new fl::InputLVar("EnemyShooters");
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enemyWalkers = new fl::InputLVar("EnemyWalkers");
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enemyFlyers = new fl::InputLVar("EnemyFlyers");
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helper += ourShooters, ourWalkers, ourFlyers, enemyShooters, enemyWalkers, enemyFlyers;
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BOOST_FOREACH (auto val, helper)
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{
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val->addTerm (new fl::ShoulderTerm("FEW", 0, 0.75, true));
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val->addTerm (new fl::ShoulderTerm("MANY", 0.25, 1, false));
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engine.addInputLVar(val);
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}
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helper.clear();
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ourSpeed = new fl::InputLVar("OurSpeed");
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enemySpeed = new fl::InputLVar("EnemySpeed");
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helper += ourSpeed, enemySpeed;
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BOOST_FOREACH (auto val, helper)
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{
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val->addTerm (new fl::ShoulderTerm("LOW", 3, 8.1, true));
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val->addTerm (new fl::TriangularTerm("MEDIUM", 6.9, 13.1));
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val->addTerm (new fl::ShoulderTerm("HIGH", 10.5, 16, false));
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engine.addInputLVar(val);
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}
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castleWalls = new fl::InputLVar("CastleWalls");
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castleWalls->addTerm(new fl::SingletonTerm("NONE", CGTownInstance::NONE));
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castleWalls->addTerm(new fl::TrapezoidalTerm("MEDIUM", CGTownInstance::FORT, 2.5));
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castleWalls->addTerm(new fl::ShoulderTerm("HIGH", CGTownInstance::CITADEL - 0.1, CGTownInstance::CASTLE));
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engine.addInputLVar(castleWalls);
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bankPresent = new fl::InputLVar("Bank");
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bankPresent->addTerm(new fl::SingletonTerm("FALSE", 0));
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bankPresent->addTerm(new fl::SingletonTerm("TRUE", 1));
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engine.addInputLVar(bankPresent);
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threat = new fl::OutputLVar("Threat");
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threat->addTerm (new fl::TriangularTerm("LOW", MIN_AI_STRENGHT, 1));
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threat->addTerm (new fl::TriangularTerm("MEDIUM", 0.8, 1.2));
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threat->addTerm (new fl::ShoulderTerm("HIGH", 1, 1.5, false));
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engine.addOutputLVar(threat);
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engine.hedgeSet().add(new fl::HedgeSomewhat());
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engine.hedgeSet().add(new fl::HedgeVery());
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tacticalAdvantage.addRule(new fl::MamdaniRule("if OurShooters is MANY and EnemySpeed is LOW then Threat is very LOW", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if OurSpeed is LOW and OurShooters is FEW and EnemyShooters is MANY then Threat is very HIGH", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if (OurShooters is MANY and OurFlyers is MANY) and EnemyShooters is MANY then Threat is LOW", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if OurShooters is MANY and EnemySpeed is HIGH then Threat is somewhat HIGH", engine));
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//tacticalAdvantage.addRule(new fl::MamdaniRule("if OurShooters is MANY and EnemyShooters is MANY then Threat is MEDIUM", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if Bank is TRUE and OurShooters is MANY then Threat is somewhat HIGH", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if Bank is TRUE and EnemyShooters is MANY then Threat is LOW", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if CastleWalls is HIGH and OurWalkers is MANY then Threat is very HIGH", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if CastleWalls is HIGH and OurFlyers is MANY and OurShooters is MANY then Threat is MEDIUM", engine));
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tacticalAdvantage.addRule(new fl::MamdaniRule("if CastleWalls is MEDIUM and OurShooters is MANY and EnemyWalkers is MANY then Threat is LOW", engine));
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engine.addRuleBlock (&tacticalAdvantage);
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}
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catch(fl::ParsingException pe)
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{
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tlog1 << "initTacticalAdvantage " << pe.name() << ": " << pe.message() << '\n';
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}
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catch (fl::FuzzyException fe)
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{
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tlog1 << "initTacticalAdvantage " << fe.name() << ": " << fe.message() << '\n';
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}
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}
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ui64 FuzzyHelper::estimateBankDanger (int ID)
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{
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std::vector <ConstTransitivePtr<BankConfig>> & configs = VLC->objh->banksInfo[ID];
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ui64 val = std::numeric_limits<ui64>::max();
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try
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{
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switch (configs.size())
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{
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case 4:
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try
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{
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int bankVal;
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for (int i = 0; i < 4; ++i)
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{
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bankVal = evaluateBankConfig (VLC->objh->banksInfo[ID][i]);
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bankDanger->term("Bank" + boost::lexical_cast<std::string>(i))->setMinimum(bankVal * 0.5f);
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bankDanger->term("Bank" + boost::lexical_cast<std::string>(i))->setMaximum(bankVal * 1.5f);
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}
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//comparison purposes
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//int averageValue = (evaluateBankConfig (VLC->objh->banksInfo[ID][0]) + evaluateBankConfig (VLC->objh->banksInfo[ID][3])) * 0.5;
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dynamic_cast<fl::SingletonTerm*>(bankInput->term("SET"))->setValue(0.5);
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bankInput->setInput (0.5);
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engine.process (BANK_DANGER);
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val = bankDanger->output().defuzzify(); //some expected value of this bank
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}
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catch (fl::FuzzyException fe)
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{
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tlog1 << fe.name() << ": " << fe.message() << '\n';
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}
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break;
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case 1: //rare case - Pyramid
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val = evaluateBankConfig (VLC->objh->banksInfo[ID][0]);
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break;
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default:
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tlog3 << ("Uhnandled bank config!\n");
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}
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}
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catch (fl::FuzzyException fe)
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{
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tlog1 << "estimateBankDanger " << fe.name() << ": " << fe.message() << '\n';
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}
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return val;
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}
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float FuzzyHelper::getTacticalAdvantage (const CArmedInstance *we, const CArmedInstance *enemy)
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{
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float output = 1;
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try
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{
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armyStructure ourStructure = evaluateArmyStructure(we);
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armyStructure enemyStructure = evaluateArmyStructure(enemy);
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ourWalkers->setInput(ourStructure.walkers);
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ourShooters->setInput(ourStructure.shooters);
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ourFlyers->setInput(ourStructure.flyers);
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ourSpeed->setInput(ourStructure.maxSpeed);
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enemyWalkers->setInput(enemyStructure.walkers);
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enemyShooters->setInput(enemyStructure.shooters);
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enemyFlyers->setInput(enemyStructure.flyers);
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enemySpeed->setInput(enemyStructure.maxSpeed);
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bool bank = dynamic_cast<const CBank*>(enemy);
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if (bank)
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bankPresent->setInput(1);
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else
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bankPresent->setInput(0);
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const CGTownInstance * fort = dynamic_cast<const CGTownInstance*>(enemy);
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if (fort)
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{
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castleWalls->setInput (fort->fortLevel());
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}
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else
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castleWalls->setInput(0);
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engine.process (TACTICAL_ADVANTAGE);
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output = threat->output().defuzzify();
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}
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catch (fl::FuzzyException fe)
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{
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tlog1 << "getTacticalAdvantage " << fe.name() << ": " << fe.message() << '\n';
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}
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return output;
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}
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